Top quality 0-35 psi Dipricol boost gauge. These gauges are Original Equipment Manufacturer parts on various Caterpillar, Komatsu, Euclid and John Deere products, their accuracy is unsurpassed. Every boost gauge is complete with a tubing kit, brass hardware and a "T" to splice into the turbo's rubber boost line for easy and accurate installation. Their night time illumination is a pale green that matches the factory color perfectly.